Privacy Policy

1. Overview

O Canteiro 3D ("the Service") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you use our web application and iOS mobile application.

2. Information We Collect

2.1 Files You Upload

When you upload 3D model files (GLB/glTF), we store those files on our servers to enable viewing and sharing functionality. We do not analyze, modify, or use the content of your files for any purpose other than providing the Service.

2.2 Technical Data

We may collect minimal technical data necessary for the Service to function, including:

• Device type and operating system (for rendering optimization)
• Basic usage analytics (page views, feature usage)
• Error and crash reports

2.3 What We Do NOT Collect

• Personal identification information (name, email, phone) — the Service does not require account registration
• Location data
• Contact lists or address books
• Photos, camera, or microphone data
• Browsing history outside the Service
• Financial information (payments are handled entirely by Apple's App Store)

3. How We Use Information

The information we collect is used exclusively to:

• Store and serve your uploaded 3D models
• Generate and manage share links
• Optimize rendering performance for your device
• Improve the reliability and performance of the Service

4. Data Sharing

We do not sell, trade, or otherwise transfer your information to third parties. Your uploaded models are only accessible via the specific share links you generate. We may share anonymized, aggregated usage data for analytical purposes.

5. Data Storage and Security

Uploaded files are stored on our servers with industry-standard security measures. Share links use randomly generated identifiers, making them effectively unguessable. However, anyone with a share link can access the associated model — please share links only with intended recipients.

6. Data Retention

Uploaded models and share links are retained as long as they are actively used. We may periodically remove content that has not been accessed for an extended period. You can request deletion of your uploaded content by contacting us.

7. Third-Party Services

The Service may use the following third-party services:

• Apple App Store — for iOS app distribution and subscription management. Apple's privacy policy applies to payments.
• Expo / EAS — for app updates delivery. Expo's privacy policy applies to update distribution.

8. Children's Privacy

The Service is not directed to children under 13. We do not knowingly collect information from children under 13. If you believe a child has provided us with information, please contact us and we will delete it.

9. Your Rights

You have the right to:

• Request deletion of your uploaded content
• Know what data we store related to your use of the Service
• Opt out of any analytics (where applicable)

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. We encourage you to review this page periodically.

11. Contact

For questions about this Privacy Policy or to exercise your data rights, please contact us at [email protected].